* a la hora de + Infinitivo = when it came to + Gerundio, when it comes to + Gerundio.

* a la hora de la verdad = when push comes to shove, if it comes to the crunch, when it comes to the crunch, when the worst comes to the worst, if the worst comes to the worst, when the crunch comes to the crunch, if the crunch comes to the crunch.

* a la vez = at once, at one time, at similar times, at the same time, concurrently, side-by-side, simultaneously, at the same instant, in parallel, in tandem, at the one time, in a tandem fashion, at a time, in unison.

* a propósito = deliberate, for the record, incidentally, intentionally, by the way, in passing, anecdotally, purposely, by design, on purpose, wilfully [willfully, -USA], on a sidenote, studiously, by the way of (a) digression, by the by(e), speaking of which, designedly.

* a toda pastilla = in the fast lane, on the fast track, fast lane, overdrive, full steam ahead, full-tilt, at full tilt, full-throttle, at full throttle, at a rate of knots, at top speed, at full blast, at full speed.

* a instancias de= at the instigation of, at the behest of, under the auspices of.

* a intervalos= at intervals.

* a intervalos + Adjetivo= at + Adjetivo + intervals.

* a intervalos semanales= at weekly intervals.

* a invitación de= at the invitation of.

* a jabón= soapy [soapier -comp., soapiest -sup.].

* a juicio= on trial.

* a juicio público= in the public eye.

* a juzgar por= to judge by, judging by, judging from.

* a la acuarela= water-coloured [water-colored, -USA].

* a la alcaldía= mayoral.

* a la altura de= of the stature of, equal to.

* a la altura de la cintura= waist high, waist deep.

* a la altura de la rodilla= knee-high.

* a la altura de los hombros= shoulder-high.

* a la anchura de los hombros= shoulder-width.

* a la anochecida= at nightfall.

* a la antigua= old-style.

* a la antigua usanza= old-style.

* a la atención de= c/o (care of).

* a la baja= on the wane.

* a la brasa= grilled.

* a la buena de Dios= out in the cold.

* a la cabeza de= in the forefront of/in.

* a la caída de la noche= at nightfall, at twilight.

* a la caída de la tarde= at twilight.

* a la carta= a la carte.

* a la defensiva= on the defensive.

* a la derecha= at the right.

* a la derecha de= on the right side of, on the right-hand side of.

* a la deriva= rudderless.

* a la discreción de= at the discretion of.

* a la disposición de Alguien= at + Posesivo + disposal.

* a la expectativa de= on the lookout for, on the alert for.

* a la + Expresión Temporal= a + Expresión Temporal.

* a la fuerza= forcefully, of necessity, forcibly, compulsorily.

* a la fuga= on the run, on the lam.

* a la hora de + Infinitivo= when it came to + Gerundio, when it comes to + Gerundio.

* a la hora de la verdad= when push comes to shove, if it comes to the crunch, when it comes to the crunch, when the worst comes to the worst, if the worst comes to the worst, when the crunch comes to the crunch, if the crunch comes to the crunch.

* a la hora del café= at coffee.

* a la intemperie= in the open, exposed.

* a la inversa= mirror-fashion, mirror image, in reverse.

* a la izquierda= at the left.

* a la larga= in the long term, over the long term, in the end, eventually, for the long pull, over a period of time, over the long haul, in the far term, ultimately, by and by.

* a la ligera= lightly.

* a la luz de= in light of, in the light of.

* a la luz de la luna= by moonlight, in the moonlight, moonlit.

* a la luz de las estrellas= by starlight.

* a la luz de las velas= by candlelight, candlelight, candlelit.

* a la luz del día= in the light of day.

* a la luz de una lámpara de gas= by gaslight.

* a la mano de= available at the fingertips of.

* a la misma altura que= in the same league as.

* a la moda= trendy [trendier -comp., trendiest -sup.].

* a la onda= in the know.

* a la opinión pública= in the public eye.

* a la par= in concert, in tandem, neck and neck, in a tandem fashion, in parallel.

* a la par que= in tandem with, hand in hand (with), as the same time as.

* a la parrilla= grilled, on the grill.

* a la perfección= superbly.

* a la plancha= griddled, on the griddle, on the hotplate.

* a largo plazo= in the long term, over the long term, long-range, in the long run, long-term, over the long run, over the long haul, long-run, in the far term, far-term.

* a la salida= on the way out.

* a la sazón= at that time.

* a las doce del mediodía= at high noon.

* a la semana= a week, per week.

* a las mil maravillas= marvellously [marvelously, -USA], famously, like a house on fire.

* a la vanguardia= on the cutting edge, on the leading edge, in the fast lane, on the fast track, at the leading edge, on the bleeding edge.

* a la vanguardia de= in the vanguard of, at the forefront of, in the forefront of/in, at the vanguard of.

* a la velocidad de la luz= at the speed of light.

* a la velocidad del rayo= at the speed of lightning.

* a la velocidad del sonido= at the speed of sound.

* a la venta= on release.

* a la vez= at once, at one time, at similar times, at the same time, concurrently, side-by-side, simultaneously, at the same instant, in parallel, in tandem, at the one time, in a tandem fashion, at a time, in unison.

* a primera vista= on first acquaintance, at first sight, on first inspection, on the face of it, at first blush, at first glance, on the surface, prima facie, first-blush.

* a primeros de + Fecha= in the early + Fecha.

* a principios de + Fecha= in the early + Fecha.

* a principios de los + Década= early + Década, the.

* a priori= proactive [pro-active], foresight, a priori, on the surface.

* a prisa= quickly.

* a propósito= deliberate, for the record, incidentally, intentionally, by the way, in passing, anecdotally, purposely, by design, on purpose, wilfully [willfully, -USA], on a sidenote, studiously, by the way of (a) digression, by the by(e), speaking of which, designedly.

* a propósito de= apropos of.

* a propósito de nada= for no specific reason, for no particular reason.

* a su tiempo= in a timely fashion, in due course, in a timely manner.

* a su vez= Verbo + further, in turn, in its/their turn.

* a tal efecto= to this effect.

* a tales efectos= hereto.

* a tarifa reducida= at reduced cost.

* a tarifas especiales= at reduced rates, at preferential rates.

* a temperatura ambiente= at room temperature.

* a tener en cuenta en el futuro= for future reference.

* a tenor de= in light of, in the face of, in the light of, in view of.

* a ti= you, thee.

* a tiempo= in timely fashion, on time, promptly, timely, just in time, in time.

* a tiempo completo= full-time.

* a tiempo parcial= part-time.

* a tientas= in the dark.

* a tientas y a ciegas= blindly, in the dark.

* a ti mismo= yourself, thyself.

* a tiro= within gunshot, within range.

* a tirones= jerky [jerkier -comp., jerkiest -sup.].

* a título de= by way of, for the sake of.

* a título gratuito= gratuitous.

* a título personal= in a personal capacity, in a private capacity.

* a toda costa= absolutely, at all costs, come what may, at any cost, at any price.

* a toda máquina= in the fast lane, fast lane, full steam ahead, at full tilt, full-tilt, full-throttle, at full throttle, at top speed, at full blast, at full speed.

* a toda marcha= at full throttle, at top speed, at full blast, at full speed, at full stretch.

* a toda mecha= at a rate of knots, full steam ahead, at full blast, at full throttle, at top speed, at full speed, at full stretch.

* a toda pasta= at a rate of knots.

* a toda pastilla= in the fast lane, on the fast track, fast lane, overdrive, full steam ahead, full-tilt, at full tilt, full-throttle, at full throttle, at a rate of knots, at top speed, at full blast, at full speed.

* a toda prueba= unswerving.

* a todas horas= at all hours, around the clock.

* a todas luces= patently.

* a todas partes= far and wide.

* a toda velocidad= full-tilt, at full tilt, full-throttle, at full throttle, at top speed, at full blast, at full speed.

* a todo alrededor= all round.

* a todo color= full-colour, in full colour.

* a todo gas= full steam ahead, full-tilt, at full tilt, full-throttle, at full throttle, at top speed, at full blast, at full speed, at full stretch.

* a todo lo largo de= the length of.

* a todo meter= full steam ahead, at full stretch, at full speed, at full blast, at top speed, at full throttle.

* a todo ritmo= in full swing, in full force, in full gear.

* a todos lados= far and wide.

* a todos los efectos= to all intents and purposes, to all intents, for all practical purposes, for all intents and purposes.

* a todos los niveles= at all levels.

* a todos nosotros= us all.

* a todos por igual= one size fits all.

* a todo vapor= full steam ahead, full-tilt, at full tilt, full-throttle, at full throttle, at top speed, at full blast, at full speed, at full stretch.

* a todo volumen= at full blast.

* a tontas y a ciegas= headlong, runaway.

* a tontas y locas= like there's no tomorrow, without rhyme or reason.

* a tope= packed to capacity, in the fast lane, fast lane, choc-a-block, chock-full, in full swing, in full gear, packed to the rafters.

* a trancas y barrancas= with great difficulty, by fits and starts.

* a través de= by way of, in the form of, through, via, out of, through the agency of.

* a través de Internet= Internet-based, Web-based, Web-supported.

* a través de la historia= over time.

* a través de la TI= IT-enabled.

* a través de la web= Web-based, Web-supported.

* a través de los años= over the years, down the years.

* a través de los ojos de= through the eyes of.

* a través de los siglos= over the centuries.

* a través del teléfono= call-in.

* a través del tiempo= over time.

* a través de operador= operator-assisted.

* a tres bandas= three pronged.

* a tres niveles= three-tiered.

* a troche y moche= like there's no tomorrow.

* a trompicones= by fits and starts.

* a tropezones= falteringly, hesitantly, haltingly, jerkily.

* a trozos= piecewise.

* ¡A tu salud!= Here's to you!.

* a última hora= at the last minute, at the eleventh hour, last minute [last-minute], at the very last minute, at the very last moment, at the very last.

Ex.In the mechanised paper fibre process individual pages are soaked and split so that acid-free paper can be put between the two layers.

Ex.It's tempting to splurge on a new hi-fi system or head out on a shopping spree, but the smart option might be to pay off an existing debt.

Ex.Finally six men agreed to go forth in their underclothes and nooses around their necks in hopeful expectation that their sacrifice would satisfy the king's bloodlust and he would spare the rest of the citizens.

----

* a partir de = based on, working from, from, on a diet of, in response to.

* a partir de ahora = from now on, from this point on, henceforth, as of now.

Ex: In the mechanised paper fibre process individual pages are soaked and split so that acid-free paper can be put between the two layers.

Ex: It's tempting to splurge on a new hi-fi system or head out on a shopping spree, but the smart option might be to pay off an existing debt.

Ex: Finally six men agreed to go forth in their underclothes and nooses around their necks in hopeful expectation that their sacrifice would satisfy the king's bloodlust and he would spare the rest of the citizens.

* a partir de= based on, working from, from, on a diet of, in response to.

* a partir de ahora= from now on, from this point on, henceforth, as of now.